DEEPLY CLEAN TEETH & IMPROVE GUM CONDITION: With upgraded unique pulsation technique, oral irrigator can offer high pressure water pulse 1400-1800 times/min, 30-110PSI strong water pressure to remove oral hidden deep, massage the gum effectively and promoting blood circulation. Also helpful for bleeding gums, bad breath, benefitful for orthodontic, bridge care and brace SUIT DIFFERENT CONDITIONS OF TEETH & GUMS: Clean- With 1800 times/minute strong water pulses to remove smaller particles. Soft - Offers gentle 1400 times/minute pressure to clean sensitive teeth. Massage - With 1400~1800 times/minute to clean your teeth and stimulate and massage the gums. Please choose soft mode when you use dental flosser at the first time CARRY ON SIZE: Cordless & small size, this water teeth cleaner picks is ideal for travel, 5 interchangeable jet tips included for your whole family. The 360rotatable nozzle allows you to easily clean areas that are difficult to reach and prevents tooth decay, dental plaque,dental calculus,gingival bleeding and dental POWERFUL BATTERY LIFE & IPX7 WATERPROOF: With powerful and environmental lithium battery, fully charged need 4 hours and used continuously for about 21 days. Come with USB Cable(Adapter Not Included) applicable to a variety of charging equipements such as power bank, computer, laptop.... With double-sealing rings